http://online.wsj.com/article/SB10001424052970204204004576049571490850918.html?mod=googlenews_wsj
online.wsj.com
Abengoa Solar Inc. expects to start construction in mid-2011 on a plant in Arizona that will store sun-generated heat to provide six extra hours a day of electric-generating capacity. The heat creates steam that is used to turn power turbines.